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21.1 Vocabulary Quiz PowerPoint Presentation
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21.1 Vocabulary Quiz

21.1 Vocabulary Quiz

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21.1 Vocabulary Quiz

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  1. 21.1 Vocabulary Quiz

  2. Put your name & class period on your paper. • Write 21.1 vocab under your name. • Number from 1 – 8. • Have a pen/colored pencil to check.

  3. Each slide will be visible for 30 seconds. Once all slides have cycled through, they will be repeated, remaining visible for 10 seconds each.

  4. NUMBER 1 • to approach the end

  5. NUMBER 2 • time unit in the geological time scale, measured in millions of years to tens of millions of years

  6. NUMBER 3 • longest eon in geologic history of Earth

  7. NUMBER 4 • record of Earth’s history from its origin to the present used to correlate geologic events, environmental changes, and development of life-forms that are preserved in rock

  8. NUMBER 5 • many groups of organisms disappear from the rock record at the same time

  9. NUMBER 6 • third-longest time unit in the geological time scale, measured in tens of millions of years to hundreds of millions of years

  10. NUMBER 7 • longest time unit in the geologic time scale, measured in billions of years

  11. NUMBER 8 • second-longest time unit in the geological time scale, measured in hundreds of millions of years

  12. REVIEW

  13. NUMBER 1 • to approach the end

  14. NUMBER 2 • time unit in the geological time scale, measured in millions of years to tens of millions of years

  15. NUMBER 3 • longest eon in geologic history of Earth

  16. NUMBER 4 • record of Earth’s history from its origin to the present used to correlate geologic events, environmental changes, and development of life-forms that are preserved in rock

  17. NUMBER 5 • many groups of organisms disappear from the rock record at the same time

  18. NUMBER 6 • third-longest time unit in the geological time scale, measured in tens of millions of years to hundreds of millions of years

  19. NUMBER 7 • longest time unit in the geologic time scale, measured in billions of years

  20. NUMBER 8 • second-longest time unit in the geological time scale, measured in hundreds of millions of years

  21. ANSWERS

  22. NUMBER 1 decline

  23. NUMBER 2 epoch

  24. NUMBER 3 Precambrian

  25. NUMBER 4 geologic time scale

  26. NUMBER 5 mass extinction

  27. NUMBER 6 period

  28. NUMBER 7 eon

  29. NUMBER 8 era